HTML Minifier & Beautifier
Compress HTML markup to reduce page load time or beautify nested tags with consistent hierarchy indentation.
What is HTML Minifier & Beautifier?
HTML minification reduces document size by 15% to 40% on average by stripping comments, collapsing consecutive whitespace, and trimming attribute padding according to W3C HTML5 standards. Use Beautify mode to restore clean, hierarchical 2-space indentation for debugging without uploading code to any server.
Designed for accuracy, speed, and privacy, this tool runs entirely on your local device with zero network latency.
How to Use the HTML Minifier & Beautifier
- 1Paste your raw HTML document or component snippet into the left editor.
- 2Select "Minify" to compress markup or "Beautify" to organize nested tags with clean indentation.
- 3Toggle "Preserve Comments" if you need to keep legal notices, license headers, or conditional statements.
- 4Inspect the live compression savings metric and click "Copy HTML" or "Download .html".
Formula & Calculation Logic
Minification utilizes regular expression tokenizers to safely collapse redundant whitespace outside of preformatted blocks (<pre>, <code>, <textarea>, <script>) while removing HTML comment nodes (<!-- ... -->).
Compression Ratio = [(Original Bytes − Minified Bytes) / Original Bytes] × 100% | W3C HTML5 SyntaxHTML Minifier & Beautifier Frequently Asked Questions
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